Pith Number

pith:5BS3A6XJ

pith:2022:5BS3A6XJ4YDJCPGKY2WGOGQWEF

not attested not anchored not stored refs pending

On Sparse Hitting Sets: from Fair Vertex Cover to Highway Dimension

Andreas Emil Feldmann, Anna Zych-Pawlewicz, Johannes Blum, Siddharth Gupta, Yann Disser

arxiv:2208.14132 v3 · 2022-08-30 · cs.DS · cs.CC · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5BS3A6XJ4YDJCPGKY2WGOGQWEF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T05:01:40.673978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e865b07ae9e606913ccac6ac671a1621725c5c24095219c332aeffe6a752ed4f

Aliases

arxiv: 2208.14132 · arxiv_version: 2208.14132v3 · doi: 10.48550/arxiv.2208.14132 · pith_short_12: 5BS3A6XJ4YDJ · pith_short_16: 5BS3A6XJ4YDJCPGK · pith_short_8: 5BS3A6XJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/5BS3A6XJ4YDJCPGKY2WGOGQWEF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e865b07ae9e606913ccac6ac671a1621725c5c24095219c332aeffe6a752ed4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d5b561abc6c0a65e140c9133fa0a6ac6a26e29601d9b4f62d53ee767dfb468a",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2022-08-30T10:28:06Z",
    "title_canon_sha256": "a1c05fd681a2eff63031f18e6cf66df8ffa5d40aa2bf4c177d7964e478050075"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.14132",
    "kind": "arxiv",
    "version": 3
  }
}